/**
 * This file is part of the NocoBase (R) project.
 * Copyright (c) 2020-2024 NocoBase Co., Ltd.
 * Authors: NocoBase Team.
 *
 * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
 * For more information, please refer to: https://www.nocobase.com/agreement.
 */
import { Registry } from '@nocobase/utils';
import PluginNotificationManagerServer from './plugin';
import type { NotificationQueueMessage, NotificationChannelConstructor, RegisterServerTypeFnParams, ReceiversOptions, SendOptions, SendUserOptions, WriteLogOptions } from './types';
export declare class NotificationManager implements NotificationManager {
    private static readonly SLOW_SEND_THRESHOLD_MS;
    private plugin;
    channelTypes: Registry<{
        Channel: NotificationChannelConstructor;
        useQueue: boolean;
    }>;
    constructor({ plugin }: {
        plugin: PluginNotificationManagerServer;
    });
    registerType({ type, Channel, useQueue }: RegisterServerTypeFnParams): void;
    createSendingRecord: (options: WriteLogOptions) => Promise<import("@nocobase/database").Model<any, any>>;
    private toQueueMessage;
    private getQueuedResult;
    private getDirectResult;
    private getDeferredResult;
    private shouldUseQueue;
    private enqueue;
    private dispatchAfterCommit;
    findChannel(name: string): Promise<any>;
    private getReceiverMeta;
    send(params: SendOptions): Promise<{
        status: "success" | "failure";
        reason: string;
        triggerFrom: string;
        channelName: string;
        receivers: ReceiversOptions;
        queued: boolean;
    } | {
        status: "success";
        triggerFrom: string;
        channelName: string;
        receivers: ReceiversOptions;
    } | {
        status: "failure";
        reason: string;
        triggerFrom: string;
        channelName: string;
        receivers: ReceiversOptions;
    }>;
    sendNow(params: NotificationQueueMessage): Promise<any>;
    sendToUsers(options: SendUserOptions): Promise<({
        status: "success" | "failure";
        reason: string;
        triggerFrom: string;
        channelName: string;
        receivers: ReceiversOptions;
        queued: boolean;
    } | {
        status: "success";
        triggerFrom: string;
        channelName: string;
        receivers: ReceiversOptions;
    } | {
        status: "failure";
        reason: string;
        triggerFrom: string;
        channelName: string;
        receivers: ReceiversOptions;
    })[]>;
}
export default NotificationManager;